Cita APA (7a ed.)

Williams, M., & Siveter, D. (2008). The earliest leperditicope arthropod: A new genus from the Ordovician of Spitsbergen.

Cita Chicago Style (17a ed.)

Williams, M., y D. Siveter. The Earliest Leperditicope Arthropod: A New Genus from the Ordovician of Spitsbergen. 2008.

Cita MLA (9a ed.)

Williams, M., y D. Siveter. The Earliest Leperditicope Arthropod: A New Genus from the Ordovician of Spitsbergen. 2008.